@article{Wang2026, 
author = {Shibo Wang and Liang Yin and Yonglin Ju},
title = {Simulation and Analysis of the Cascade Process for 136Xe Isotope Separation Based on Microchannel Distillation Technology},
year = {2026},
journal = {Journal of Refrigeration},
volume = {47},
number = {4},
pages = {141-147},
keywords = {isotope separation, cryogenic rectification column, microchannel, genetic algorithm},
url = {https://www.sciopen.com/article/10.12465/issn.0253-4339.20250410001},
doi = {10.12465/issn.0253-4339.20250410001},
abstract = {Conventional distillation methods face significant challenges in xenon isotope separation. This paper proposes a cascaded distillation system based on a microchannel distillation (MCD) apparatus for 136Xe enrichment. The relative volatilities, saturation vapor pressures, and enthalpies of vaporization of the nine Xe isotopes were determined, and a corresponding pseudo-component model was validated in Aspen Hyprotech Systems (HYSYS). A ternary model was then used to optimize the MCD parameters, identifying the optimal operating pressure, reflux ratio, and feed-to-product ratio effects on enrichment efficiency and reboiler power consumption. Subsequent optimization via uniform design, stepwise quadratic regression, non-dominated sorting genetic algorithm (NSGA)-Ⅲ, and the technique for order preference by similarity to an ideal solution (TOPSIS) reduced power consumption while increasing 136Xe abundance from 8.670% to 13.347%. This microchannel cascaded distillation system overcomes conventional limitations and offers a novel and efficient approach for 136Xe enrichment with significant theoretical and practical implications.}
}